Share a star-gazing session with your little astronomer! This constellation chart is full of fun stories about the different groups of stars.

Learn the science of volcanic eruption with this cutaway diagram

Do you know how clouds form? Get the basic idea of how moisture in the air can become a cloud.

This science vocabulary activity is packed with basic science vocabulary words to help the youngest kids warm up to scientific concepts.

This worksheet features Mercury, the smallest planet in our Solar System, and also the planet that's closest to the Sun.

Here's a beautiful science page to help your child learn the different types of clouds.

Without rain, we wouldn't have any puddles to splash and stomp in. Does your third grader know why and how rain falls from the clouds?

Learn more about the imposing tsunami with this worksheet about the science of tsunamis.

A fill-in-the-blank exercise on tornadoes, made for fifth grade science students.

Cave formations come in all kinds of shapes and sizes; get the scoop on common cave formations with this two page printout with a maze and vocabulary.

A coloring sheet of a Mars rover searching for life on other planets.

Tree climbers and tree huggers alike, learn the basics of reading tree rings to find out about the life of a tree.

Find out what wind is all about in this intro to earth science worksheet.

Let your little weather observer discover the four seasons! She'll match up each season with its proper picture to show her knowledge of how weather changes.

Learn more about the swirling, whirling science behind tornadoes with this wild worksheet.

If your student is stuck on Celsius, hand him this multiplication and division practice sheet.

Almost nothing in this universe can travel faster than light! Have some fun exploring the speed of light with this space science worksheet.

Learn about and color in space suits in this three-page science worksheet!

Get to know your Jurassic from your Cretaceous in this handy geologic time periods chart.

Where to flower babies come from? Use this word search to learn about the different pollinators in our environment, and how they help spread plant seeds.

It's easy being green when you have our Earth Day game for a guide. Just print out this Earth Day game and get ready to score one for the planet.

Did you know that ocean water is salty, but river water is not? Find out how fresh and salt water mix together in this water cycle worksheet.

Dig in to the layers of the earth with this science coloring page!